Canada Disability Benefit: How to Apply, and the Tax Credit You Need First

The first thing to know about the Canada Disability Benefit is that the application everyone searches for is not the first step. You cannot get the benefit without being approved for the Disability Tax Credit first, and that is a separate process, with a different department, that takes its own time. Once you have that approval, applying for the benefit itself is short — four routes, a handful of numbers, and about as much paperwork as opening a bank account. Here is the chain in the order you actually need it.

Who can apply for the Canada Disability Benefit?

People aged 18 to 64 who have already been approved for the Disability Tax Credit. That approval is the gate, and nothing else on this page matters until you have it.

The full set of requirements, as the government states them, is that you must:

• be between 18 and 64 years old
• have been approved for the Disability Tax Credit (DTC)
• be a Canadian resident for income tax filing purposes
• have filed your 2025 federal income tax return — and so must your spouse or common-law partner, if you have one
• be a Canadian citizen, a permanent resident, a person registered or entitled to be registered under the Indian Act, a protected person, or a temporary resident who has lived in Canada throughout the previous 18 months

There is one exclusion worth stating plainly: if you are serving a sentence of two years or more in a federal penitentiary you are not eligible, except for the first and last month of that sentence, and you have to reapply after release.

The tax-filing requirement catches people out because it applies to both halves of a couple. If your partner has not filed, your payments do not start, regardless of your own situation.

How do you actually apply?

Four ways, and the government recommends one of them.

The paper route goes to the Service Canada Centre, CDB Processing Centre, P.O. Box 60, Boucherville, QC J4B 5E6. There is a separate printable form for legal representatives applying on someone else’s behalf.

You can also ask someone you trust to help you with the application without them becoming your legal representative — those are different things, and only the second one requires documents.

What do you need to have ready?

That depends on one thing: whether Service Canada has written to you. The letter contains a unique six-digit application code in its upper right-hand corner, and having it changes the checklist.

If you did not get a letter, the government specifically suggests providing your net income from line 23600 of your 2024 notice of assessment, because it speeds up processing and payment. Note the year: eligibility requires your 2025 return to be filed, while this particular figure comes off the 2024 assessment. They are different documents and it is easy to reach for the wrong one.

Direct deposit is optional on paper but worth doing — Service Canada asks everyone to sign up for it because it is the fastest way to be paid. You will need the branch, institution and account numbers.

If you are applying as someone’s legal representative, you also need proof of your authority: a court order appointing a trustee, committee or guardian, a certificate of guardianship, or a Continuing or Springing Power of Attorney or mandate that meets your province’s requirements. Acting in a professional capacity inside an organisation adds another layer — your organisation’s mailing address instead of your own, plus a document identifying you as part of it.

How much could you get?

Up to $204.20 a month for the period from July 2026 to June 2027. That figure is a maximum, not a standard payment, and it falls away as income rises.

The work-exempt column is the amount of employment income set aside before the test is applied; for the two couple rows it is a combined figure across both of you. Above those thresholds the benefit tapers. For a single person, and for a couple where only one qualifies, it drops by 20 cents for every dollar over. Where both partners qualify, each benefit drops by 10 cents per dollar instead — a gentler taper applied twice.

The income being tested is your adjusted family net income, which is not simply your salary: it is family net income from line 23600, minus universal child care benefit and registered disability savings plan income received, plus any of those amounts repaid. Canada.ca publishes an estimator that does this properly for your own numbers, and for anything near a threshold that is the tool to use rather than a table.

Your entitlement is recalculated every year against the previous year’s income, and the benefit is indexed to inflation — with a floor, in that your payment will not be cut if the cost of living falls.

Can you get back payments?

Yes, up to 24 months from the date your application is received — but never for any month before June 2025, which was the first month of eligibility for the programme.

Your first payment lands on the third Thursday of the month after your application is approved, and it includes any back payments you are owed. After that, payments begin the month following approval.

That 24-month window is the reason not to wait. It counts backwards from when the government receives your application, not from when you became eligible, so every month you delay is potentially a month of back pay that falls off the far end.

What is the $150 supplemental payment?

A one-off $150 to offset what it cost you to get the Disability Tax Credit — and you do not apply for it.

If you received a Canada Disability Benefit payment between July 2025 and June 2026, it is issued on 17 September 2026, with a letter explaining it. If your first CDB payment came after June 2026, yours is issued later. It is paid once per approved DTC certificate that qualifies you for a monthly payment, and people who received a CDB payment before September 2026 still get it even if they are no longer receiving payments — a single one-time payment in July 2025 is enough to qualify.

Two details are easy to miss. The supplement is not payable for anyone who died before September 2026. And it is framed as a cost offset rather than a bonus: obtaining a DTC certificate generally involves a medical practitioner completing a form, and that can carry a fee. At $150 against an annual maximum of $2,450.40, it is worth about six per cent of a full year of the benefit itself.

Why don’t the official numbers match?

Because the government’s own page carries two different maximums, and the calculator on it uses the older one.

The page states a maximum of $204.20 a month for July 2026 to June 2027. Its step-by-step calculation, and both of its worked examples, use an annual base of $2,400 — which is $200 a month, the maximum for the previous period of July 2025 to June 2026.

This is not a reason to distrust the arithmetic. Running the government’s own steps against its own example — a single person on $35,000, minus the $10,000 working income exemption, $2,000 over the $23,000 threshold, reduced by $400 a year — produces $166.67 a month, exactly as printed. The method is sound; the base in the worked examples is a period behind.

What it means in practice is that if you work through the steps by hand you will land slightly low, and that the difference is small: $4.20 a month, or $50.40 over a year. For anything that matters, use the official estimator rather than the worked examples, because it is the part of the page that is tied to the current period.

The bottom line

Start with the Disability Tax Credit, because without it the benefit application has nowhere to go. Once approved, apply online if you can, and have your Social Insurance Number, your status in Canada, your mailing address and your banking details to hand — plus the six-digit code if Service Canada has written to you. Make sure both you and your partner have filed the 2025 return. And do not sit on it: back pay reaches 24 months behind the date they receive your application, and no further. If you were already receiving the benefit this past year, the $150 supplement arrives on 17 September without you doing anything at all. For how a single benefit can be the key to several others, the same pattern shows up in the UK’s Pension Credit , where one award unlocks a string of unrelated entitlements.